%0 Journal Article %A Fang, Weifu %A Ito, Kazufumi %T Solutions to a nonlinear drift-diffusion model for semiconductors %J Electronic Journal of Differential Equations %D 1999 %V 1999 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a76/ %G en %F EJDE_1999__1999__a76